ISO 1835:2018

INTERNATIONAL ISO
STANDARD 1835
Second edition
2018-08
Round steel short link chains for
lifting purposes — Medium tolerance
sling chains — Grade 4, stainless steel
Chaînes de levage en acier de section ronde à maillons courts —
Chaînes de élingue de tolérance moyenne — Classe de qualité 4, acier
inoxydable
Reference number
©
ISO 2018
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions, masses and designation . 2
4.1 Dimensions and masses . 2
4.2 Designation . 4
5 Requirements . 5
5.1 General . 5
5.2 Material . 5
5.3 Heat treatment . 5
5.4 Surface condition . 5
5.5 Dimensions . 5
5.5.1 Diameter . 5
5.5.2 Pitch . 5
5.5.3 Width . 5
5.5.4 Weld dimensions . 5
5.5.5 Length dimensionally affected by welding . 6
5.6 Working load limit (WLL) . 6
5.7 Mechanical properties . 6
5.7.1 General. 6
5.7.2 Manufacturing proof force (MPF) . 7
5.7.3 Breaking force (BF) . 7
5.7.4 Bend deflection, f . 7
5.7.5 Total ultimate elongation, A . 7
6 Tests . 7
6.1 General . 7
6.2 Size of lot . 7
6.3 Sampling . 7
6.4 Dimension test . 7
6.5 Tensile test . 8
6.5.1 Testing machine . 8
6.5.2 Procedure . 8
6.6 Bend test . 8
6.6.1 Testing machine . 8
6.6.2 Procedure . 8
7 Marking . 9
7.1 Grade marking . 9
7.2 Manufacturer’s marking . 9
7.3 Traceability marking . 9
8 Manufacturer’s certificate . 9
9 Use .10
10 Environmental aspects .10
Annex A (informative) Bases for calculation .11
Annex B (informative) Mass of sling chains.14
Annex C (informative) Force-deflection-diagram .15
Bibliography .17
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 111, Round steel link chains, chain slings,
components and accessories, Subcommittee SC 1, Chains and chain slings.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
This second edition cancels and replaces the first edition (ISO 1835:1980), which has been technically
revised. The main changes compared to the previous edition are as follows:
— change of material requirements towards stainless steel;
— modernization of the document structure and layout, following the structure already implemented
in the latest publications of ISO/TC 111/SC 1;
— consideration of current nominal diameters of chain and requirements;
— environmental aspects have been considered.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 1835:2018(E)
Round steel short link chains for lifting purposes —
Medium tolerance sling chains — Grade 4, stainless steel
1 Scope
This document specifies the requirements for medium tolerance sling chains of grade 4 from stainless
steel for use preferably in chain slings of grade 4 from stainless steel or for other lifting purposes.
The range of nominal diameter, d , covered by this document is from 4 mm to 22 mm.
n
These sling chains are round steel short link chains with a nominal pitch, p = 3 × d , electrically
n n
welded, solution-annealed and tested. They are for use in the temperature range –100 °C to +400 °C.
They comply with the general conditions of acceptance of ISO 1834.
NOTE 1 Because sling chains are solution-annealed in the finished condition, they can be used without
restrictions with regard to the corrosion resistance of the steels according to 5.2. Higher grades of stainless steel
chains are achieved by cold drawing of the wire prior to the chain manufacturing. Therefore, solution annealing
is not possible without reduction of strength. The weld seam, in particular, represents a critical area with regard
to the corrosion resistance.
NOTE 2 Resistance butt welding and flash welding are listed in ISO 4063.
2 Normative references
The following docum
...